Generated by Cython 3.0.7
Yellow lines hint at Python interaction.
Click on a line that starts with a "+" to see the C code that Cython generated for it.
Raw output: convertor.c
+001: # cython: language_level=3
__pyx_t_4 = __Pyx_PyDict_NewPresized(0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 1, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_4); if (PyDict_SetItem(__pyx_d, __pyx_n_s_test, __pyx_t_4) < 0) __PYX_ERR(0, 1, __pyx_L1_error) __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
002: # cython: boundscheck=False
003: # cython: wraparound=False
004: from libc.math cimport floor
005: from libc.stdlib cimport malloc, free
+006: import numpy as np
__pyx_t_7 = __Pyx_ImportDottedModule(__pyx_n_s_numpy, NULL); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 6, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_7); if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_7) < 0) __PYX_ERR(0, 6, __pyx_L1_error) __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
007: cimport numpy as np
008:
+009: cdef int PREC = 10
__pyx_v_5dfpwm_9convertor_PREC = 10;
010:
+011: cdef short* proc_untracked(const float[:] input_data, const int sz) nogil:
static short *__pyx_f_5dfpwm_9convertor_proc_untracked(__Pyx_memviewslice __pyx_v_input_data, int const __pyx_v_sz) {
int __pyx_v_charge;
int __pyx_v_strength;
short __pyx_v_previous_bit;
short *__pyx_v_out;
size_t __pyx_v_i;
size_t __pyx_v_j;
int __pyx_v_this_byte;
float __pyx_v_level;
short __pyx_v_current_bit;
int __pyx_v_next_charge;
int __pyx_v_next_strength;
int __pyx_v_target;
int __pyx_v_v1;
int __pyx_v_v2;
long __pyx_v_z;
long __pyx_v_v3;
short *__pyx_r;
/* … */
/* function exit code */
__pyx_L0:;
return __pyx_r;
}
+012: cdef int charge = 0
__pyx_v_charge = 0;
+013: cdef int strength = 0
__pyx_v_strength = 0;
+014: cdef short previous_bit = False
__pyx_v_previous_bit = 0;
015:
+016: cdef short *out = <short*>malloc(sizeof(short) * sz)
__pyx_v_out = ((short *)malloc(((sizeof(short)) * __pyx_v_sz)));
017:
+018: cdef size_t i = 0
__pyx_v_i = 0;
+019: cdef size_t j = 0
__pyx_v_j = 0;
020:
+021: cdef int this_byte = 0
__pyx_v_this_byte = 0;
022: cdef float level
023: cdef short current_bit
024: cdef int next_charge
025: cdef int next_strength
026: cdef int target
027: cdef int v1, v2
+028: while i < sz:
while (1) {
__pyx_t_1 = (__pyx_v_i < __pyx_v_sz);
if (!__pyx_t_1) break;
+029: j = 0
__pyx_v_j = 0;
+030: while j < 8:
while (1) {
__pyx_t_1 = (__pyx_v_j < 8);
if (!__pyx_t_1) break;
+031: level = floor(input_data[i * 8 + j] * 127)
__pyx_t_2 = ((__pyx_v_i * 8) + __pyx_v_j);
__pyx_v_level = floor(((*((float const *) ( /* dim=0 */ (__pyx_v_input_data.data + __pyx_t_2 * __pyx_v_input_data.strides[0]) ))) * 127.0));
032:
+033: current_bit = level > charge or (level == charge and charge == 127)
__pyx_t_1 = (__pyx_v_level > __pyx_v_charge);
if (!__pyx_t_1) {
} else {
__pyx_t_3 = __pyx_t_1;
goto __pyx_L7_bool_binop_done;
}
__pyx_t_1 = (__pyx_v_level == __pyx_v_charge);
if (__pyx_t_1) {
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__pyx_t_3 = __pyx_t_1;
goto __pyx_L7_bool_binop_done;
}
__pyx_t_1 = (__pyx_v_charge == 0x7F);
__pyx_t_3 = __pyx_t_1;
__pyx_L7_bool_binop_done:;
__pyx_v_current_bit = __pyx_t_3;
+034: target = (127 if current_bit else -128)
__pyx_t_1 = (__pyx_v_current_bit != 0);
if (__pyx_t_1) {
__pyx_t_4 = 0x7F;
} else {
__pyx_t_4 = -128;
}
__pyx_v_target = __pyx_t_4;
035:
+036: v1 = ((strength * (target - charge) + (1 << PREC - 1)) >> PREC)
__pyx_v_v1 = (((__pyx_v_strength * (__pyx_v_target - __pyx_v_charge)) + (1 << (__pyx_v_5dfpwm_9convertor_PREC - 1))) >> __pyx_v_5dfpwm_9convertor_PREC);
037:
+038: next_charge = charge + v1
__pyx_v_next_charge = (__pyx_v_charge + __pyx_v_v1);
+039: if v1 == 0 and next_charge != target:
__pyx_t_5 = (__pyx_v_v1 == 0);
if (__pyx_t_5) {
} else {
__pyx_t_1 = __pyx_t_5;
goto __pyx_L11_bool_binop_done;
}
__pyx_t_5 = (__pyx_v_next_charge != __pyx_v_target);
__pyx_t_1 = __pyx_t_5;
__pyx_L11_bool_binop_done:;
if (__pyx_t_1) {
/* … */
}
+040: next_charge += 1 if current_bit else -1
__pyx_t_1 = (__pyx_v_current_bit != 0);
if (__pyx_t_1) {
__pyx_t_6 = 1;
} else {
__pyx_t_6 = -1L;
}
__pyx_v_next_charge = (__pyx_v_next_charge + __pyx_t_6);
041:
+042: v2 = this_byte >> 1
__pyx_v_v2 = (__pyx_v_this_byte >> 1);
043:
+044: this_byte = v2 + 128 if current_bit else v2
__pyx_t_1 = (__pyx_v_current_bit != 0);
if (__pyx_t_1) {
__pyx_t_6 = (__pyx_v_v2 + 0x80);
} else {
__pyx_t_6 = __pyx_v_v2;
}
__pyx_v_this_byte = __pyx_t_6;
045:
+046: z = ((1 << PREC) - 1 if current_bit == previous_bit else 0)
__pyx_t_1 = (__pyx_v_current_bit == __pyx_v_previous_bit);
if (__pyx_t_1) {
__pyx_t_6 = ((1 << __pyx_v_5dfpwm_9convertor_PREC) - 1);
} else {
__pyx_t_6 = 0;
}
__pyx_v_z = __pyx_t_6;
+047: next_strength = strength
__pyx_v_next_strength = __pyx_v_strength;
048:
+049: if strength != z:
__pyx_t_1 = (__pyx_v_strength != __pyx_v_z);
if (__pyx_t_1) {
/* … */
}
+050: next_strength += 1 if current_bit == previous_bit else -1
__pyx_t_1 = (__pyx_v_current_bit == __pyx_v_previous_bit);
if (__pyx_t_1) {
__pyx_t_6 = 1;
} else {
__pyx_t_6 = -1L;
}
__pyx_v_next_strength = (__pyx_v_next_strength + __pyx_t_6);
051:
+052: v3 = 2 << (PREC - 8)
__pyx_v_v3 = (2 << (__pyx_v_5dfpwm_9convertor_PREC - 8));
+053: if next_strength < v3:
__pyx_t_1 = (__pyx_v_next_strength < __pyx_v_v3);
if (__pyx_t_1) {
/* … */
}
+054: next_strength = v3
__pyx_v_next_strength = __pyx_v_v3;
055:
+056: charge = next_charge
__pyx_v_charge = __pyx_v_next_charge;
+057: strength = next_strength
__pyx_v_strength = __pyx_v_next_strength;
+058: previous_bit = current_bit
__pyx_v_previous_bit = __pyx_v_current_bit;
059:
+060: j+=1
__pyx_v_j = (__pyx_v_j + 1);
}
061:
+062: out[i] = this_byte
(__pyx_v_out[__pyx_v_i]) = __pyx_v_this_byte;
063:
+064: i += 1
__pyx_v_i = (__pyx_v_i + 1); }
065:
+066: return out
__pyx_r = __pyx_v_out; goto __pyx_L0;
067:
+068: cpdef compressor(
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PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
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PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
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069: in_array: np.ndarray[np.float32],
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int __pyx_v_charge;
int __pyx_v_strength;
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short __pyx_v_this_byte;
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071: ):
+072: cdef int charge = 0
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+073: cdef int strength = 0
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+074: cdef char previous_bit = False
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075:
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078:
+079: cdef short *out_array = <short*>malloc(sizeof(short) * sz)
__pyx_v_out_array = ((short *)malloc(((sizeof(short)) * __pyx_v_sz)));
080:
081: cdef size_t i
082: cdef size_t j
083: cdef float level
084: cdef short this_byte
085: cdef char current_bit
086: cdef int next_charge
087: cdef int next_strength
088: cdef int target
089: cdef int v1, v2
090:
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